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top down view of roast leg of lamb, mint sauce and roast potatoes

Roast Leg of Lamb with Mint Sauce

Roasted leg of lamb served with homemade mint sauce.
5 from 6 votes
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Course: Main
Cuisine: British
Keyword: lamb recipe, roast lamb
Prep Time: 10 minutes
Cook Time: 1 hour 30 minutes
Servings: 6 -8
Calories: 402kcal


  • 3 cloves garlic peeled and crushed
  • ½ small bunch fresh rosemary half the leaves removed and chopped
  • 1 lemon, zest
  • 2 tbsp olive oil
  • 2kg/4.5 lbs quality leg of lamb
  • salt

For the Mint Sauce:

  • 20g/1/2 cup fresh mint leaves
  • 1 tsp honey
  • 1 tsp salt
  • 1 tablespoon hot water
  • 2 tablespoons white wine vinegar
  • 4 tbsp olive oil


  • Preheat the oven to 200C/400F
  • In a mortar combine chopped rosemary leaves, crushed garlic, coarse salt, lemon zest and olive oil. Bash it with a pestle till rosemary and lemon zest release their oils and the mixture resembles a paste.
  • Rub the mixture all over the leg and roast in the preheat oven for 1 hour 15 minutes for a medium-rare and 1 hour 30 minutes for a well done roast.
  • Put mint, sugar, salt, water, white wine vinegar and olive oil in a food processor and blend until smooth.
  • When your roast is cooked take it out of the oven and loosely cover it with aluminum foil. Allow it to rest for 20 minutes before cutting it.


Calories: 402kcal | Carbohydrates: 2g | Protein: 43g | Fat: 24g | Saturated Fat: 5g | Cholesterol: 134mg | Sodium: 520mg | Potassium: 637mg | Fiber: 1g | Sugar: 1g | Vitamin A: 145IU | Vitamin C: 3mg | Calcium: 26mg | Iron: 4mg